Optical resin and lighting device having same

A lighting device comprising:

• a substrate;
• a light emitting device disposed on the substrate;
• a resin layer sealing the light emitting device on the substrate;
• and
• a diffusion layer or a reflective substrate disposed on the resin layer,
• wherein the resin layer includes an oligomer, a monomer and an additive,
• wherein the monomer include acrylate having an epoxy group without using acrylate having a hydroxyl group, and the monomer includes IBOA (Iso-bornyl Acrylate), two or more dilution monomers, and glycidyl methacrylate (GMA),
• wherein the additive includes a photoinitiator and an amine-based light stabilizer,
• wherein in the oligomer and the monomer, content of the oligomer is 20-25%, content of the IBOA is 40-50%, content of the two or more dilution monomers is 10-20%, and content of the glycidyl methacrylate is 10 to 15%,
• wherein the resin layer is a curable transparent resin cured by ultraviolet light,
• wherein a content of the monomer in a total content of the optical resin is three times higher than the content of the oligomer.